Shahrood University of Technology Journal of Solid and Fluid Mechanics 2251-9475 10 4 2020 12 21 Investigating the influencing parameters on blood flow of grafted vessel in coronary artery bypass surgery Investigating the influencing parameters on blood flow of grafted vessel in coronary artery bypass surgery 317 329 2009 10.22044/jsfm.2020.9287.3099 FA H. A. Pakravan School of mechanical engineering, Shiraz University F. Shojaei School of Mechanical Engineering, Shiraz University, Shiraz, Iran Journal Article 2020 01 13 The most common heart disease is coronary arteries stenosis. Generally, there are three approaches for treatment of coronary artery stenosis that includes coronary artery bypass surgery, Angioplasty and drug therapy. Coronary artery bypass surgery includes surgical procedure that blood flow path is diverted in the part that stenosis was occurred and then is guided to the another direction. For this purpose, Cardiac surgeon removes the vessel from the another part of the body and grafts it into the desired location and thus blood flow in that part is restored again. In this study the attempts were made to study the bypass flow rate that is required for grafted vessel for different degrees of stenosis in the coronary artery by using various simple one-dimensional equations. So that we can find the values of bypass flow, especially in the higher percentage of stenosis, with a fairly appropriate approximation. This model could be a guidance for surgeon to choose an appropriate bypass for a patient. The most common heart disease is coronary arteries stenosis. Generally, there are three approaches for treatment of coronary artery stenosis that includes coronary artery bypass surgery, Angioplasty and drug therapy. Coronary artery bypass surgery includes surgical procedure that blood flow path is diverted in the part that stenosis was occurred and then is guided to the another direction. For this purpose, Cardiac surgeon removes the vessel from the another part of the body and grafts it into the desired location and thus blood flow in that part is restored again. In this study the attempts were made to study the bypass flow rate that is required for grafted vessel for different degrees of stenosis in the coronary artery by using various simple one-dimensional equations. So that we can find the values of bypass flow, especially in the higher percentage of stenosis, with a fairly appropriate approximation. This model could be a guidance for surgeon to choose an appropriate bypass for a patient. https://jsfm.shahroodut.ac.ir/article_2009_5b645e66a4cc82389d4306fc760723ab.pdf